Use pure worm castings to cook your amendments. Worms produce an enzyme that repels pests.
I use their entire line up for a water only living soil.
Bat guano, neem seed meal, crab meal, seabird guano, kelp meal, gypsum, humic acid, langbeinite, azomite, feather meal, alfalfa meal, fish bone meal, and rock phosphate. A little goes a long way! I add twice as much bat guano to all other ingredients. To date I add the amendments at the recommended amounts except for the bat guano; x2. Let it cook for 4 to 6 weeks. They also have water soluble products and liquid fertilizers. Add their root zone when transplanting. Down to earth offers the best soil amendments and organic fertilizers.